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+<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"
+ "http://www.w3.org/TR/html4/loose.dtd">
+<html> <head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title> Postfix manual - postqueue(1) </title>
+</head> <body> <pre>
+POSTQUEUE(1) POSTQUEUE(1)
+
+<b>NAME</b>
+ postqueue - Postfix queue control
+
+<b>SYNOPSIS</b>
+ <b>To flush the mail queue</b>:
+
+ <b>postqueue</b> [<b>-v</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] <b>-f</b>
+
+ <b>postqueue</b> [<b>-v</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] <b>-i</b> <i>queue</i><b>_</b><i>id</i>
+
+ <b>postqueue</b> [<b>-v</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] <b>-s</b> <i>site</i>
+
+ <b>To list the mail queue</b>:
+
+ <b>postqueue</b> [<b>-v</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] <b>-j</b>
+
+ <b>postqueue</b> [<b>-v</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] <b>-p</b>
+
+<b>DESCRIPTION</b>
+ The <a href="postqueue.1.html"><b>postqueue</b>(1)</a> command implements the Postfix user interface for
+ queue management. It implements operations that are traditionally
+ available via the <a href="sendmail.1.html"><b>sendmail</b>(1)</a> command. See the <a href="postsuper.1.html"><b>postsuper</b>(1)</a> command
+ for queue operations that require super-user privileges such as delet-
+ ing a message from the queue or changing the status of a message.
+
+ The following options are recognized:
+
+ <b>-c</b> <i>config</i><b>_</b><i>dir</i>
+ The <a href="postconf.5.html"><b>main.cf</b></a> configuration file is in the named directory instead
+ of the default configuration directory. See also the MAIL_CONFIG
+ environment setting below.
+
+ <b>-f</b> Flush the queue: attempt to deliver all queued mail.
+
+ This option implements the traditional "<b>sendmail -q</b>" command, by
+ contacting the Postfix <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon.
+
+ Warning: flushing undeliverable mail frequently will result in
+ poor delivery performance of all other mail.
+
+ <b>-i</b> <i>queue</i><b>_</b><i>id</i>
+ Schedule immediate delivery of deferred mail with the specified
+ queue ID.
+
+ This option implements the traditional <b>sendmail -qI</b> command, by
+ contacting the <a href="flush.8.html"><b>flush</b>(8)</a> server.
+
+ This feature is available with Postfix version 2.4 and later.
+
+ <b>-j</b> Produce a queue listing in JSON format, based on output from the
+ <a href="showq.8.html">showq(8)</a> daemon. The result is a stream of zero or more JSON
+ objects, one per queue file. Each object is followed by a new-
+ line character to support simple streaming parsers. See "<b>JSON</b>
+ <b>OBJECT FORMAT</b>" below for details.
+
+ This feature is available in Postfix 3.1 and later.
+
+ <b>-p</b> Produce a traditional sendmail-style queue listing. This option
+ implements the traditional <b>mailq</b> command, by contacting the
+ Postfix <a href="showq.8.html"><b>showq</b>(8)</a> daemon.
+
+ Each queue entry shows the queue file ID, message size, arrival
+ time, sender, and the recipients that still need to be deliv-
+ ered. If mail could not be delivered upon the last attempt, the
+ reason for failure is shown. The queue ID string is followed by
+ an optional status character:
+
+ <b>*</b> The message is in the <b>active</b> queue, i.e. the message is
+ selected for delivery.
+
+ <b>!</b> The message is in the <b>hold</b> queue, i.e. no further deliv-
+ ery attempt will be made until the mail is taken off
+ hold.
+
+ <b>#</b> The message is forced to expire. See the <a href="postsuper.1.html"><b>postsuper</b>(1)</a>
+ options <b>-e</b> or <b>-f</b>.
+
+ This feature is available in Postfix 3.5 and later.
+
+ <b>-s</b> <i>site</i>
+ Schedule immediate delivery of all mail that is queued for the
+ named <i>site</i>. A numerical site must be specified as a valid <a href="https://tools.ietf.org/html/rfc5321">RFC</a>
+ <a href="https://tools.ietf.org/html/rfc5321">5321</a> address literal enclosed in [], just like in email
+ addresses. The site must be eligible for the "fast flush" ser-
+ vice. See <a href="flush.8.html"><b>flush</b>(8)</a> for more information about the "fast flush"
+ service.
+
+ This option implements the traditional "<b>sendmail -qR</b><i>site</i>" com-
+ mand, by contacting the Postfix <a href="flush.8.html"><b>flush</b>(8)</a> daemon.
+
+ <b>-v</b> Enable verbose logging for debugging purposes. Multiple <b>-v</b>
+ options make the software increasingly verbose. As of Postfix
+ 2.3, this option is available for the super-user only.
+
+<b>JSON OBJECT FORMAT</b>
+ Each JSON object represents one queue file; it is emitted as a single
+ text line followed by a newline character.
+
+ Object members have string values unless indicated otherwise. Programs
+ should ignore object members that are not listed here; the list of mem-
+ bers is expected to grow over time.
+
+ <b>queue_name</b>
+ The name of the queue where the message was found. Note that
+ the contents of the mail queue may change while it is being
+ listed; some messages may appear more than once, and some mes-
+ sages may be missed.
+
+ <b>queue_id</b>
+ The queue file name. The queue_id may be reused within a Postfix
+ instance unless "<a href="postconf.5.html#enable_long_queue_ids">enable_long_queue_ids</a> = true" and time is mono-
+ tonic. Even then, the queue_id is not expected to be unique
+ between different Postfix instances. Management tools that
+ require a unique name should combine the queue_id with the
+ <a href="postconf.5.html#myhostname">myhostname</a> setting of the Postfix instance.
+
+ <b>arrival_time</b>
+ The number of seconds since the start of the UNIX epoch.
+
+ <b>message_size</b>
+ The number of bytes in the message header and body. This number
+ does not include message envelope information. It is approxi-
+ mately equal to the number of bytes that would be transmitted
+ via SMTP including the &lt;CR&gt;&lt;LF&gt; line endings.
+
+ <b>forced_expire</b>
+ The message is forced to expire (<b>true</b> or <b>false</b>). See the <a href="postsuper.1.html"><b>post-</b></a>
+ <a href="postsuper.1.html"><b>super</b>(1)</a> options <b>-e</b> or <b>-f</b>.
+
+ This feature is available in Postfix 3.5 and later.
+
+ <b>sender</b> The envelope sender address.
+
+ <b>recipients</b>
+ An array containing zero or more objects with members:
+
+ <b>address</b>
+ One recipient address.
+
+ <b>delay_reason</b>
+ If present, the reason for delayed delivery. Delayed
+ recipients may have no delay reason, for example, while
+ delivery is in progress, or after the system was stopped
+ before it could record the reason.
+
+<b>SECURITY</b>
+ This program is designed to run with set-group ID privileges, so that
+ it can connect to Postfix daemon processes.
+
+<b>STANDARDS</b>
+ <a href="https://tools.ietf.org/html/rfc7159">RFC 7159</a> (JSON notation)
+
+<b>DIAGNOSTICS</b>
+ Problems are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>, and to the standard
+ error stream.
+
+<b>ENVIRONMENT</b>
+ MAIL_CONFIG
+ Directory with the <a href="postconf.5.html"><b>main.cf</b></a> file. In order to avoid exploitation
+ of set-group ID privileges, a non-standard directory is allowed
+ only if:
+
+ <b>o</b> The name is listed in the standard <a href="postconf.5.html"><b>main.cf</b></a> file with the
+ <b><a href="postconf.5.html#alternate_config_directories">alternate_config_directories</a></b> configuration parameter.
+
+ <b>o</b> The command is invoked by the super-user.
+
+<b>CONFIGURATION PARAMETERS</b>
+ The following <a href="postconf.5.html"><b>main.cf</b></a> parameters are especially relevant to this pro-
+ gram. The text below provides only a parameter summary. See <a href="postconf.5.html"><b>post-</b></a>
+ <a href="postconf.5.html"><b>conf</b>(5)</a> for more details including examples.
+
+ <b><a href="postconf.5.html#alternate_config_directories">alternate_config_directories</a> (empty)</b>
+ A list of non-default Postfix configuration directories that may
+ be specified with "-c <a href="postconf.5.html#config_directory">config_directory</a>" on the command line (in
+ the case of <a href="sendmail.1.html"><b>sendmail</b>(1)</a>, with the "-C" option), or via the
+ MAIL_CONFIG environment parameter.
+
+ <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
+ The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
+ figuration files.
+
+ <b><a href="postconf.5.html#command_directory">command_directory</a> (see 'postconf -d' output)</b>
+ The location of all postfix administrative commands.
+
+ <b><a href="postconf.5.html#fast_flush_domains">fast_flush_domains</a> ($<a href="postconf.5.html#relay_domains">relay_domains</a>)</b>
+ Optional list of destinations that are eligible for per-destina-
+ tion logfiles with mail that is queued to those destinations.
+
+ <b><a href="postconf.5.html#import_environment">import_environment</a> (see 'postconf -d' output)</b>
+ The list of environment variables that a privileged Postfix
+ process will import from a non-Postfix parent process, or
+ name=value environment overrides.
+
+ <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b>
+ The location of the Postfix top-level queue directory.
+
+ <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
+ The syslog facility of Postfix logging.
+
+ <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b>
+ A prefix that is prepended to the process name in syslog
+ records, so that, for example, "smtpd" becomes "prefix/smtpd".
+
+ <b><a href="postconf.5.html#trigger_timeout">trigger_timeout</a> (10s)</b>
+ The time limit for sending a trigger to a Postfix daemon (for
+ example, the <a href="pickup.8.html"><b>pickup</b>(8)</a> or <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon).
+
+ Available in Postfix version 2.2 and later:
+
+ <b><a href="postconf.5.html#authorized_flush_users">authorized_flush_users</a> (<a href="DATABASE_README.html#types">static</a>:anyone)</b>
+ List of users who are authorized to flush the queue.
+
+ <b><a href="postconf.5.html#authorized_mailq_users">authorized_mailq_users</a> (<a href="DATABASE_README.html#types">static</a>:anyone)</b>
+ List of users who are authorized to view the queue.
+
+<b>FILES</b>
+ /var/spool/postfix, mail queue
+
+<b>SEE ALSO</b>
+ <a href="qmgr.8.html">qmgr(8)</a>, queue manager
+ <a href="showq.8.html">showq(8)</a>, list mail queue
+ <a href="flush.8.html">flush(8)</a>, fast flush service
+ <a href="sendmail.1.html">sendmail(1)</a>, Sendmail-compatible user interface
+ <a href="postsuper.1.html">postsuper(1)</a>, privileged queue operations
+ <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging
+ syslogd(8), system logging
+
+<b>README FILES</b>
+ <a href="ETRN_README.html">ETRN_README</a>, Postfix ETRN howto
+
+<b>LICENSE</b>
+ The Secure Mailer license must be distributed with this software.
+
+<b>HISTORY</b>
+ The postqueue command was introduced with Postfix version 1.1.
+
+<b>AUTHOR(S)</b>
+ Wietse Venema
+ IBM T.J. Watson Research
+ P.O. Box 704
+ Yorktown Heights, NY 10598, USA
+
+ Wietse Venema
+ Google, Inc.
+ 111 8th Avenue
+ New York, NY 10011, USA
+
+ POSTQUEUE(1)
+</pre> </body> </html>